Gyratory crusher.



T. W. GAPEN.-

GYRATORY CRUSHER.

APPLICATION IILEIJ NOV. 13, 1909.

1,029,742. I Patented June 18, 1912.

3 SHEETS-SHEET 2.

WITNESSES NTEJ BY awfi' ATT DRNEY- T. W. GAPEN. GYRATORY CRUSHER.

APPLICATION FILED NOV. 13, 1909v 1,029,742- Patented June 18, 1912.

l I 3 r l a E 8 32 I a g 9 s '\& 4kg H v u H w I WITNEEEEE- awvew-rcn x- C MBIA PLANOIJRAPH 60.,WASHlNuTON D c BY 4 I (22% 6M ATTURNM THOMAS W. CAPEN, OF MILWAUKEE, WISCONSIN, ASSIGNOR TO ALLIS-CHALMERS COMPANY, OF MILWAUKEE, WISCONSIN, A CORPORATION OF NEW JERSEY.

GYRATORY ORUSI- IER.

To all whom it may concern Be it known that I, THOMAS W. CAPEN, a citizen of the United States, residing at Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Gyratory Crushers, of which the following is a specification.

This invention relates to improvements in the construction of crushers of the type in which the crushing head is given a gyratory movement within a stationary shell.

An object of the invention is to provide a crusher which is simple and efficient in construction and operation, and in which the overall height is reduced to a minimum, a feature particularly desirable in portable crushers.

Another object is to produce a crusher in which the hopper opening is entirely free from obstruction such as spider arms.

Still another object is to provide an ad justment of the concave support whereby the size of crushed material may be determined and the support be held rigid at any adjusted position.

A clear conception of the invention can be obtained by referring to the accompanying drawings in which like reference characters designate the same or similar parts in different views.

Figure 1 is a central vertical section through a crusher, built according to the invention. Fig. 2 is a vertical section of the crusher taken on the line IIII of Fig. 1, looking in the direction of the arrows. Fig. 3 is a horizontal section of the device taken on the line IHIII of Fig. 1, looking in the direction of the arrow. Fig. 4 is a similar section taken on the line IVIV of Fig. 1, looking in the direction of the arrows. Fig. 5 is a central vertical sectional view of a modification.

The hopper 1 of the crusher, see Fig. 1, rests upon an upper surface of the concave support 2 and the concaves 9. The concave support 2 is fitted into the crusher frame 11, being held in place for any desired adjustment by the bolt-s 12 and the jack screws 10.

The frame 11 is cylindrical in shape, see Figs. 3, 4, and has a central portion-26 which is connected to the outer wall by the ribs 13, the discharge openings 25 being formed between the ribs 13. The central portion 26 forms the support for the stand:

Specification of Letters Patent.

Application filed November 13, 1909.

Patented June 18, 1912.

Serial No. 527,767.

ard 7 concentric with the frame 11 and clamped to the portion 26 by the nut 16. The drive shaft 5 has a driving gear 19 fastened to its lower end and keyed thereto by means of a key 18, and passes through and finds bearing in a central opening in the standard 7 The eccentric 4 is a cylindrical piece having an eccentric bore and is fastened to the upper end of the shaft 5 and keyed thereto by means of a key 17, and rests upon a wearing plate 6 on top of the standard 7, the eccentric bore fitting and bearing on said standard. The crusher head 8 is centrally mounted on the eccentric 4 and is loose thereon. The head 8 rests uponthewearing ring 14 supported by the frame portion 26. The cap 3 which is attached to the upper portion of the crushing head 8, covers the eccentric 4 and the shaft 5.

The chamber 15 is formed in the frame 11 below the'central portion 26 out of direct path of the discharge of material through the openings 25, see Figs. 1, 4. The gear 19 on shaft 5 and pinion 22 meshing therewith are located within the chamber 15. The pinion 22 is keyed to the shaft 21 by a key 23, the shaft 21 being suspended by a bearing 20 which is bolted to the frame 11 underneath one of the ribs 13.

In the modification of Fig. 5, there is no central standard as in the modification of Fig. 1 and the eccentric element actuating the crusher head 8 is formed directly on the shaft 5 as an eccentric portion 32. The shaft 5 finds bearing in the frame 11 at two places, one in the frame portion 34 at the central portion 26, and the other bearing 36 in the frame portion 38 with an interposed wearing step plate 37 under shaft 5. A bushing 33 is interposed between the head 8 and the eccentric portion 32 of the shaft5 and serves as a convenient means for centering the cap 31 by placing the cap with its counterbore fitting the upper projecting end of the bushing. The remaining structure is similar to that of the modification of Fig. 1.

In the operation of the crusher, the shaft 5 is rotated by means of the gear 19, pinion 22 and shaft 21 from some convenient source of power. This gives a rotary motion to the eccentric 4 or eccentric portion 32, which in turn gives a parallel gyratory motion to the crushing head 8. The material to be crushed is admitted into the freely open annular space between the gyrating head 8 and the concaves 9 through the hopper 1. As the material advances toward the'bottoin of the crusher, it is ground-finer until finally it is discharged through the openings 25. The adjustment of the concave support 2 is made by locating jack screws '10- to the desired level, and then screwing down the nuts on bolts 12.

It shouldbe understood that it is not desired to be limited to the eXact details of construction shown and described, for obvious modifications will occur to a person skilled'in the art.

It is claimed and desired to secure by Letters Patent 1. The combination in a crusher, of a shell, a crusher head within said shell, said head having a through bore, a rotatable shaft, a bearing for said shaft supported only from :underneath said shell, and a cylindrical eccentric rigid with said shaft and located within said bore in said head, and means for rotating said shaft.

2. The combination in a crusher,of -a shell, a crusher head within said shell, a rotatable shaft, a bearing for said shaft supported only from underneath said shell, a standard supported from underneath said shell, a single cylindrical eccentric rigid with said shaft and bearing on said stand ard'and located within said head, and means for rotating said shaft.

3.The combination in a crusher, of a shell, a concave support Within said shell, concaves within said support, a crusher head within said shell, support and concaves, a rotatable shaft, a bearing supported only from underneath said shell, a means eccentrically rigid with said shaft and located within said head, means for rotating said shaft, and means for vertically adjusting said concaves and support.

7 4. The combination in a crusher, of a shell, a concave support within said shell, concaves within said support; a crusher head within said shell, support, and concaves; a rotatable shaft, a bearing supported only from underneath said shell, a means eccen-i 5. In a crusher, concaves, a fixed standard within said concaves, a rotatable cylindrical eccentric bearing on said standard, a crusher head having a through bore within which 7 said eccentric is located, and a shaft in said standard for rotating said eccentric.

In testimony whereof, I afliX my signature in the presence of two witnesses.

THOMAS Vi. CAPEN. lVitnesses.

G. F. DE VVEIN, W. H. LIEBER.

Copies of this patent may be obtained forfive cents each, by addressing the Commissioner of Patents, Washington, D. C. 

